The gottlieb system 1 power supply is a fairly robust device.
Gottlieb system 1 power supply repair.
You can click on the image to see the full size view of the schematic which can be saved or printed.
4 3 3 recommended power supply updates repairs.
New design uses new components and runs much cooler.
Remove the original power supply board from the heatsink plate and install this board using the same mounting holes and screws.
I also include a pdf of the schematic.
The first picture below is the system 1 power supply with voltage notations plus other info.
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A gottlieb system 1 power supply can be repaired refurbished for a only a few dollars in parts.
A simple cure for the system 1 and 80 x regulator supply ground problems is to connect the ground plane of the regulator circuit board to one or two of the studs that the securing screws use to hold the circuit board to the regulator s heat sink and then making sure that the heat sink frame is connected to the cabinet ground plane.
Power supply board overview.
Heck it s not easy to work on either.
Gottlieb system 1 power supply schematic with voltages.
But it certainly is not perfect.
Gottlieb system 1 sound board original.
New redesigned power supply for gottlieb system 1 plug and play.